Missed Q's Previous exams Flashcards
What would happen if there is no ATP available during a sarcomere contraction cycle?
A. Myosin head will remain lightly attached to its binding site on actin
B. Myosin head will detach from its binding site on actin
C. Myosin head will bend/pivot but will not attach to its binding site on actin
A. Myosin head will remain lightly attached to its binding site on actin
Select 2 Statements that are correct.
A. A skeletal muscle fascicle is covered by the epimysium
B. Smooth muscle cells can undergo mitosis
C. Arrector pili muscle is a skeletal muscle.
D. The muscle cell of the tongue is cylindrical with motor nerve innervation
B & D
Which muscle cell had its actin myofilaments anchored to dense bodies?
A. Skeletal
B. Cardiac
C. Smooth
D. Skeletal and Cardiac
E. Skeletal, Cardiac, and Smooth
C. Smooth
T-tubules are an extension of which of the following?
A. sarcolemma
B. Neurolemma
C. Skeletal muscle sarcoplasmic reticulum
D. skeletal muscle Golgi bodies
Cardiac muscle mitochondria
A. sarcolemma
Which of the following locations has brown adipose in an adult human body?
A. Near C1 and C2 vertebrae in males
B. around kidneys.
C. Hypodermis.
D. Palm and sole cushions.
A. A and B
B. B only
C. C only
D. C and D
A. A and B
Which of these will likely be increased in number if the patient has an acute bacterial infection?
A. Neutrophils
B. Eosinophils
C. Basophils
A. A only
B. A and B
C. B only
D. C only
A. A only
A cell that is found on the surface of bone trabecular that produces alkaline phosphatase, is also mononucleated.
True/False
True
Which of the following enzymes are secreted by an osteoclast?
A. Proteases like cathepsin K.
B. Bacterial lytic enzymes.
C. Acid phosphatase.
D. Alkaline phosphatase.
A. B & D
B. B & C
C. A & C
D. All except B
C. A & C
Proteases like cathepsin K
Acid Phosphatase
Write the name of bone lamellae against the statement that applies to it.
1) This lamella is a remnant of old osteons
2) This lamella is a part of an active existing osteon
3.) This lamella is found closer to the periosteum
1) interstitial lamellae
2) concentric lamellae
3) Outer circumferential lamellae
State whether the following statements are true or false:
1) Endochondral ossification is a slower process
2) Both the ossification processes initiate with mesenchymal differentiation.
3) Intramembraneous ossification starts off with the formation of hyaline cartilage.
4)In endochondral ossification, osteoblasts secret the bone matrix
5) Mature cells trapped in bone matrix are referred to as osteocytes
1) True
2) True
3) False
4) TRUE
5) True
State true of false: Sulfated GAGs have a higher water-binding ability.
True
State true of false: When ‘inactivation peptides are taken off the Procollagen molecule. it activates the fibrillogenesis process
True
T/F: Collagen fibriliogenosis is an extracellular process.
True
What type of collagen is dominant in tissues like blood vessel wall, dermis or tendons?
A. Collagen type 1
B. Collagen type 2
C. Collagen type 3
Collagen type 7
A. Collagen type 1
Here are some characteristics of cells of the connective Tissue. Write the name of the cell next to the statement that applies to it.
- Fibroblast - Macrophage - Plasma cell - Mast cell -
1) Cell that plays an important role in rebuilding tissue after injury.
2) Cell that can produce antibodies
3) Cell that originates as a monocyte
4) Cell that initiates an inflammatory response
5) Cell that is native and permanent resident of the connective tissue.
6) Name a cell that is NOT born in the bone marrow
- Fibroblast
- Plasma Cell
- Macrophages
- Mast cell
- fibroblast
- Fibroblast
